Meanwhile the price of a home nationwide increased by 10% in the year to September.
That's a marginal drop in the rate of increase, compared to the previous month.
The CSO's Residential Property Price Index shows the cost of a home rose by 10% in the year to September, down slightly from 10.1% in the 12 months to August.
In Dublin, prices rose by 10.8%, while outside the capital, they went up by 9.4%.
The region outside Dublin that saw the largest rise in house prices was the border, that's Cavan, Monaghan, Donegal, Leitrim and Sligo, where they rose by 15.3%.
While at the other end of the scale, the Mid-East - that's Kildare, Louth, Meath, and Wicklow - saw a 7.5% rise.
The median price paid for a home in the year to September was €346,000.
No Changes To Starting Team As Wicklow Football Yearns For Historic Croker Triumph
Wicklow Braced Once More As Coillte Signal Orange Fire Warning
Wicklow Boss Targets Tailteann Cup Glory As Down Challenge Looms At Croke Park
Wicklow TD Calls For Straw Incorporation Funding For Struggling Tillage farmers
New Operator at Wicklow Gaol Brings A Reopening Date Closer